FBAR Filing: Who Actually Has to Report, and When

A U.S. person has to file an FBAR if they have a financial interest in, or signature authority over, one or more foreign financial accounts, and the aggregate value of all of those accounts combined exceeded a set dollar threshold at any point during the calendar year, even for a single day. That's an aggregate test across every foreign account you have an interest in or authority over, not a per-account test, so several smaller foreign accounts that individually look modest can still add up to a filing requirement once you total them.

An employee or officer who can sign on a foreign account owned entirely by their employer, with no personal financial interest in the funds at all, can still have an FBAR filing obligation, because signature authority alone is enough to trigger it. There's a narrower exemption in some cases for officers or employees whose authority exists solely because of their employment, over an account owned by their employer, subject to specific conditions, but it's narrower than most people assume, so don't rely on it without checking whether your specific situation actually fits. A founder who set up a foreign entity's bank account personally, rather than through a payroll or EOR provider, is a common example of someone who ends up with authority they didn't think of as their own.

If you pay international staff through an employer of record or a global payroll platform such as Deel, rather than holding and personally controlling a foreign bank account yourself, you may never actually acquire signature authority or a financial interest over a foreign account in the first place, since the EOR or payroll provider is the one holding and managing the funds. This is worth checking specifically rather than assuming: some arrangements do give a founder or executive personal signature authority over an account even when a payroll provider handles the day-to-day payments, and that authority is what actually creates the filing obligation, not simply the fact that money moves internationally.

The FBAR is due April 15, with an automatic extension to October 15 that doesn't require a request, and it's filed separately from your tax return through FinCEN's BSA E-Filing System rather than attached to anything you send the IRS. Missing the aggregate threshold calculation, not the filing deadline itself, is the more common failure point: people remember the FBAR exists but don't total up every account they have signature authority over, only the ones they think of as personally theirs. Run that aggregate check every year, even one where nothing about your accounts has obviously changed, since a new account you barely think about can be exactly the one that pushes the total over the line.

Work through this sequence each year:

1. List every foreign account in which you have a financial interest or signature authority, including accounts owned by your employer.
2. Total the combined value across all of those accounts at any point during the calendar year and compare it to the threshold.
3. If the total exceeds the threshold, file through FinCEN's BSA E-Filing System, separately from your tax return.
4. File by April fifteenth; the automatic extension to October fifteenth doesn't require a request.
5. If you missed prior years, address it proactively through established voluntary disclosure processes rather than waiting.

Willful and non-willful failures to file are treated very differently, with non-willful failures carrying meaningfully lower exposure, and a reasonable cause exception can apply to non-willful situations where you genuinely didn't know a filing was required and took reasonable steps once you found out. That said, non-willful exposure is still real, not nominal, which is why discovering a missed filing is worth addressing proactively through the appropriate disclosure process rather than waiting to see if it comes up on its own. Waiting rarely improves your position: a filing gap discovered by the government first is treated far less sympathetically than one a taxpayer brings forward voluntarily, before anyone came looking for it.